| Alan Baker | Director | 3 Nov 2005 | 11 Mar 2008 | Scottish | 60 years |
| Alexander Hughes Honeyman | Director | 13 Feb 2020 | 31 Dec 2021 | British | 66 years |
| Alexandra Leta Malone | Director | 1 Apr 2022 | 7 Jul 2025 | British | 43 years |
| Annant Shah | Director | 15 Sept 2021 | 24 Jul 2023 | British | 44 years |
| Barry O'regan | Director | 13 Feb 2020 | 2 Oct 2023 | Irish | 49 years |
| Caoimhe Mary Giblin | Director | 28 Jul 2010 | 22 Sept 2014 | Irish | 50 years |
| Colin Clarke Nicol | Director | 19 Mar 2013 | 12 Dec 2014 | British | 66 years |
| Crescent Trust Co | Corporate Secretary | 3 Nov 2008 | 2 Dec 2011 | - | - |
| Cypher Services Limited | Corporate Secretary | 23 May 2002 | 3 Nov 2008 | United Kingdom | - |
| Daniel Mark Pearson | Director | 21 Mar 2023 | 21 Oct 2025 | British | 50 years |
| David Gardner | Director | 19 Oct 2010 | 12 Oct 2012 | British | 63 years |
| Donal Francis Flynn | Director | 5 Dec 2007 | 28 Jul 2010 | Irish | 53 years |
| Edward O'connor | Director | 23 May 2002 | 1 Feb 2008 | Irish | 79 years |
| Elaine Harley | Director | 13 Feb 2020 | 2 Oct 2023 | British | 57 years |
| Finlay Alexander Mccutcheon | Director | 25 Feb 2013 | 17 May 2017 | British | 49 years |
| Finlay Alexander Mccutcheon | Director | 2 Aug 2019 | 31 Dec 2020 | British | 49 years |
| Finlay Alexander Mccutcheon | Director | 1 Apr 2022 | 3 May 2024 | British | 49 years |
| Fraser Mcgergor Alexander | Director | 15 Feb 2008 | 9 Jun 2008 | British | 63 years |
| Fraser Mcgregor Alexander | Director | 15 Feb 2008 | 30 Jun 2010 | British | 63 years |
| James Isaac Smith | Director | 1 Jul 2008 | 3 Feb 2015 | British | 64 years |
| James Isaac Smith | Director | 1 Jun 2017 | 1 Feb 2022 | British | 64 years |
| Jeremy Williamson | Director | 1 Jan 2016 | 1 Jun 2017 | British | 60 years |
| Jeremy Williamson | Director | 13 Feb 2020 | 1 Apr 2022 | British | 60 years |
| John Anthony Downes | Director | 13 Feb 2020 | 1 Apr 2022 | British | 56 years |
| Kate Johanna Wallace Lockhart | Director | 3 Mar 2025 | 19 Sept 2025 | British | 35 years |
| Lawrence John Vincent Donnelly | Secretary | 2 Dec 2011 | 1 Dec 2014 | - | - |
| Louis Fitzgerald | Director | 23 May 2002 | 15 Feb 2008 | Irish | 78 years |
| Mark Ennis | Director | 1 Apr 1956 | 1 Jul 2008 | British | 70 years |
| Martin Mcadam | Director | 11 Mar 2008 | 31 Jul 2008 | Irish | 65 years |
| Nicola Dwyer | Director | 20 May 2011 | 16 Dec 2011 | Irish | 47 years |
| Pamela Walsh | Director | 28 Jan 2011 | 24 Oct 2014 | Irish | 60 years |
| Patrick Flynn | Director | 16 Dec 2011 | 17 Jul 2012 | Irish | 47 years |
| Paul Cyril Dowling | Director | 4 Mar 2004 | 28 Jan 2011 | Irish | 61 years |
| Paul Gerald Cooley | Director | 3 Feb 2015 | 27 Aug 2025 | Irish | 55 years |
| Paul Richard Smith | Director | 19 Mar 2013 | 31 May 2016 | British | 63 years |
| Peter Symons Donaldson | Director | 19 Mar 2013 | 31 Dec 2015 | British | 65 years |
| Sally Fairbairn | Secretary | 1 Dec 2014 | 7 Aug 2019 | - | - |
| Senan Murphy | Director | 4 Mar 2004 | 5 Dec 2007 | Irish | 57 years |
| Simon Murray Heyes | Director | 1 Jul 2008 | 19 Oct 2010 | British | 63 years |
| Stephen Wheeler | Director | 1 May 2008 | 19 Mar 2013 | Irish | 53 years |
| Steven Alexander Cowie | Director | 4 Mar 2004 | 5 Jun 2008 | British | 62 years |
| Yvonne Burke | Director | 23 Sept 2013 | 8 Nov 2016 | Irish | 49 years |
